A word cloud (or tag cloud) can be an handy tool when you need to highlight the most commonly cited words in a text using a quick visualization. Of course, you can use one of the several on-line services, such as wordle or tagxedo ,... [Read more...]

RStudio™ is an integrated development environment (IDE) for the statistical software R (www.r-project.org). It combines an intuitive user interface with powerful coding tools to help you get the most out of R. cloudnumbers.com provides researchers and companies with the access to resources to perform high performance calculations ... [Read more...]

Jean-Michel (aka Jean-Claude!) Marin came for a few days so that we could make late progress on the revision of our book Bayesian Core towards an Use R! version. In one of the R programs in the mixture chapter, we were getting improbable answers, until we found an R mistake ... [Read more...]

Scrabble is a game that involves both skill and luck. There's skill in knowing the words you can play and — especially — the most advantageous ways to play them. But there's also luck in the tiles you draw randomly from the bag: get saddled with a rack containing four I's and ... [Read more...]

Sooner on later, every useR will manage to exhaust R’s built-in capabilities and land on CRAN looking for his dreamed needle in a haystack of 3k+ contributed packages. Probably most of you already know stuff like Task Views or rseek which make finding something relevant a bit easier than ... [Read more...]

Somewhat later than I originally planned, JAGS 3.0.0 is released and can be downloaded from Sourceforge.  The corresponding R interface package rjags has been uploaded to CRAN There are no new modules or features in this release. I have been … Continue reading → [Read more...]

Rahul Dravid is a fantastic cricketer, and a role model for younger generation - focused, hardworking and humble.Dravid recently became the 2nd highest scorer in Test Cricket (Sachin Tendulkar is the leading scorer). His contribution to India... [Read more...]

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psych::pairs.panels and corrgram::corrgram using mtcars data Core Ideas: multivariate modeling is challenging pair plots make it easy to get a quick understanding of each variable and the relationships between them Multivariate analysis and modeling can be really challenging. Getting the job done well requires you to know ... [Read more...]

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Fast on the heels of getting RomanM’s code up and running in RghcnV3,  Nick Stokes whipped out a version of his approach which he covered on his blog here: We exchanged code and few mails thrashing through details and I’m now in a position to start the integration ... [Read more...]

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"The R-Files" is an occasional series from Revolution Analytics, where we profile prominent members of the R Community. Name: Jeff Ryan Profession: Owner/Principal at Lemnica; Committee Member at R/Finance Nationality: American Years Using R: 8 Known for: R/Finance Conference, quantmod and xts packages Jeffrey Ryan is a Chicago-based ... [Read more...]

By Brian Kimball: http://code.google.com/p/sasquatch [Read more...]

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The last Le Monde puzzle made me wonder about the ternary version of the sorting algorithms, which all seem to be binary (compare x and y, then…). The problem is, given (only) a blackbox procedure that returns the relative order of three arbitrary numbers, how many steps are necessary to ... [Read more...]

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PC-Axis is a software family consisting of a number of programs for the Windows and Internet environment used to present statistical information. It is used by national and international institutions to publish statistical data. Programs in the PC-Axis family use a particular data file format (see the full PX-Axis data ... [Read more...]

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